Article Photos: Darrell Royal and the Bud Wilkinson coaching tree

Purdue head coach Danny Hope looks to the scoreboard against Minnesota in the second half of an NCAA college football game on Saturday, Oct 27, 2012, in Minneapolis. (AP Photo/Jesse Johnson) <strong>Jesse Johnson - AP</strong>

Purdue head coach Danny Hope looks to the scoreboard against Minnesota in the second half of an NCAA college football game on Saturday, Oct 27, 2012, in Minneapolis. (AP Photo/Jesse Johnson) Jesse Johnson - AP